Windows 7,Linux and other OS install from USB Pen drive, Flash Drive

To Install Windows 7 via USB Flash Drive (Pen Drive)
You need:

USB Flash Drive (Pen Drive) minimum 4 gb for windows 7
Windows 7 ISO image file.
UNetbootin software download from here UNetbootin

Download the Unetbootin software, and open the file and click "RUN".
below window will pop


You can aslo install other OS's like linux etc etc. for Windows 7, click "Diskimage" radio button, locate or browse the ISO file of your OS by clicking "..." button.
select Drive: (in my PC usb drive is "I:" and press OK.

Next window looks like below picture


Wait till Installation Compleate.
after compleation. Click "reboot" to install to the same PC, or remove the Flash drive(Pen drive) and plug it to another PC or Laptop USB
and boot that System by USB Flash drive.
To do this Select the USB boot option from the BIOS. Or to boot from USB go through your Motherboard User Manual.

This method works on most of Machines with USB booting option.
I personally installed 100's of PC's via this method
thank you. Keep smiling. aaarwind

for other OS setup's via USB drive refer to below Website:

UNetbootin - Homepage